Susceptibility areas for rockfall is a national series of maps showing areas that are potentially vulnerable to rockfalls at a general level. The maps show potential source areas and run-out areas for rockfalls.\\nYour attention is drawn to the fact that the areas covered by source areas are in practice run-out areas as well, as avalanches that are triggered right at the top of the source area move through trigger areas below, before reaching the run-out areas at the bottom. Therefore, both source areas and run-out areas should generally be used together when using the dataset for analysis purposes. \\nThe susceptibility areas are identified by means of a data model which uses the slope of the terrain and geological information to recognise potential source areas for rockfalls. The run-out area for rockfalls is calculated automatically from each source area. No fieldwork is done when identifying or defining the areas.

The map application 'National area information' is developed by NGU (Geological Survey of Norway) to show the diversity of tematic area information that is available as map services on the web. The application include all the WMS services from NGU that is accessible through Norway digital (the national geographical infrastructure). It also include selected WMS services from public agencies/departments which offers thematic data that is interesting to show in relation to geological information.